There are many books _____ that shelf.A. on B. in C. at
—Could you tell me ____? —Sorry, I don’t know.
The Greens _____ China for seven years.
Nobody knew ______.
—Do you like this mobile phone? —Of course, It is ______ designed for office ladies like me?
—When are you going to tell the bad news to Jim? —______ he comes back.